Global Patent Index - EP 0050351 A1

EP 0050351 A1 19820428 - Optically active or racemic alpha-hydroxyaldehydes and benzyl derivatives thereof.

Title (en)

Optically active or racemic alpha-hydroxyaldehydes and benzyl derivatives thereof.

Title (de)

Alpha-Hydroxyaldehyde in optisch aktiver oder racemischer Form und ihre Benzyl-Derivate.

Title (fr)

Alpha-hydroxyaldéhydes optiquement actifs ou racémiques et leurs dérivés benzyliques.

Publication

EP 0050351 A1 19820428 (EN)

Application

EP 81108506 A 19791102

Priority

  • JP 7036579 A 19790604
  • JP 7036679 A 19790604
  • JP 7036779 A 19790604
  • JP 13551178 A 19781102
  • JP 13714778 A 19781106

Abstract (en)

An optically active or racemic alpha -hydroxyaldehyde of formula <CHEM> and a compound having a benzyloxy group in place of its hydroxy group, wherein R1 represents a C6-C14 aryl group. C1-C10 alkyl group, C3C10 alkenyl group, C2-C10 alkynyl group, C7-C14 aralkyl group, or a group containing a functional group in the organic portion of said groups, and R2 represents a C1-C10 alkyl group, C1-C10 alkenyl group, C2-C10 alkynyl group, C7-C14 aralkyl group, C6-C14 aryl group or a group containing a functional group in the organic portion of these groups, R1 and R2 being different groups, is an important intermediate for preparation of pharmaceuticals and agricultural chemicals.

IPC 1-7

C07C 47/27; C07C 47/19; C07C 47/198; C07C 47/263; C07C 45/56

IPC 8 full level

C07C 45/27 (2006.01); C07C 45/56 (2006.01); C07C 47/263 (2006.01); C07C 47/27 (2006.01); C07C 47/277 (2006.01); C07D 487/04 (2006.01)

CPC (source: EP US)

C07C 45/27 (2013.01 - EP US); C07C 45/562 (2013.01 - EP US); C07C 47/263 (2013.01 - EP US); C07C 47/27 (2013.01 - EP US); C07C 47/277 (2013.01 - EP US); C07D 487/04 (2013.01 - EP US)

Citation (search report)

  • [X] "Beilsteins Handbuch der organischen Chemie" 4th edition, 3rd supplement Vol. 8, part 2 1969, SPRINGER VERLAG, Berlin, Heidelberg, New York page 1367,
  • [P] CHEMISTRY LETTERS, No. 6, 1979 T. MUKAIYAMA et al. "Versatile method for the Preparation of Optically Active alpha-hydroxy Aldehydes with Desired Configurations" pages 705 to 708
  • [P] CHEMISTRY LETTERS, No. 8, 1979 Y. SAKITO et al. "Asymmetric Synthesis of two Enantiomers of Frontalin" pages 1027 to 1028
  • [P] CHEMISTRY LETTERS, No. 11, 1978 T. MUKAIYAMA et al. "Asymmetric Synthesis of alpha-hydroxy Aldehydes" pages 1253 to 1256
  • [A] JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Vol. 100, No. 5, 1 March 1978 Easton E.L. ELIEL et al. "A Virtually Completely Asymmetric Synthesis" pages 1614 to 1616

Designated contracting state (EPC)

DE FR GB IT NL

DOCDB simple family (publication)

EP 0048501 A1 19820331; EP 0048501 B1 19830727; EP 0011417 A1 19800528; EP 0011417 B1 19830504; EP 0050351 A1 19820428; EP 0050351 B1 19850327; US 4337346 A 19820629; US 4383122 A 19830510; US 4584387 A 19860422

DOCDB simple family (application)

EP 81108507 A 19791102; EP 79302419 A 19791102; EP 81108506 A 19791102; US 25758781 A 19810427; US 45766683 A 19830113; US 8935679 A 19791030